Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aab18f |
Gas exchange at whole plant level shows that a less conservative water use is linked to a higher performance in three ecologically distinct pine species | |
Salazar-Tortosa, D.1; Castro, J.1; Rubio de Casas, R.1; Vinegla, B.2; Sanchez-Canete, E. P.3; Villar-Salvador, P.4 | |
2018-04-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain |
英文摘要 | Increasing temperatures and decreasing precipitation in large areas of the planet as a consequence of global warming will affect plant growth and survival. However, the impact of climatic conditions will differ across species depending on their stomatal response to increasing aridity, as this will ultimately affect the balance between carbon assimilation and water loss. In this study, we monitored gas exchange, growth and survival in saplings of three widely distributed European pine species (Pinus halepensis, P. nigra and P. sylvestris) with contrasting distribution and ecological requirements in order to ascertain the relationship between stomatal control and plant performance. The experiment was conducted in a common garden environment resembling rainfall and temperature conditions that two of the three species are expected to encounter in the near future. In addition, gas exchange was monitored both at the leaf and at the whole-plant level using a transient-state closed chamber, which allowed us to model the response of the whole plant to increased air evaporative demand (AED). P. sylvestris was the species with lowest survival and performance. By contrast, P. halepensis showed no mortality, much higher growth (two orders of magnitude), carbon assimilation (ca. 14 fold higher) and stomatal conductance and water transpiration (ca. 4 fold higher) than the other two species. As a consequence, P. halepensis exhibited higher values of water-use efficiency than the rest of the species even at the highest values of AED. Overall, the results strongly support that the weaker stomatal control of P. halepensis, which is linked to lower stem water potential, enabled this species to maximize carbon uptake under drought stress and ultimately outperform the more water conservative P. nigra and P. sylvestris. These results suggest that under a hotter drought scenario P. nigra and P. sylvestris would very likely suffer increased mortality, whereas P. halepensis could maintain gas exchange and avoid water-induced growth limitation. This might ultimately foster an expansion of P. halepensis to higher latitudes and elevations. |
英文关键词 | air evaporative demand climatic change European pines gas exchange hotter drought stomatal conductance transient-state closed chamber |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434852300001 |
WOS关键词 | ANISOHYDRIC BEHAVIOR ; USE EFFICIENCY ; SEVERE DROUGHT ; LEAF ; MORTALITY ; CLIMATE ; SEEDLINGS ; STRESS ; SOIL ; GROWTH |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34348 |
专题 | 气候变化 |
作者单位 | 1.Univ Granada, Dept Ecol, Fac Ciencias, Av Fuentenueva SN, E-18071 Granada, Spain; 2.Univ Jaen, Fac Ciencias Expt, Dept Biol Anim Vegetal & Ecol, Campus Las Lagunillas SN, Jaen 23009, Spain; 3.Univ Granada, Fac Ciencias, Dept Fis Aplicada, Av Fuentenueva SN, E-18071 Granada, Spain; 4.Univ Alcala De Henares, Dept Ciencias Vida, Forest Ecol & Restorat Grp, POB 20, Madrid 28805, Spain |
推荐引用方式 GB/T 7714 | Salazar-Tortosa, D.,Castro, J.,Rubio de Casas, R.,et al. Gas exchange at whole plant level shows that a less conservative water use is linked to a higher performance in three ecologically distinct pine species[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(4). |
APA | Salazar-Tortosa, D.,Castro, J.,Rubio de Casas, R.,Vinegla, B.,Sanchez-Canete, E. P.,&Villar-Salvador, P..(2018).Gas exchange at whole plant level shows that a less conservative water use is linked to a higher performance in three ecologically distinct pine species.ENVIRONMENTAL RESEARCH LETTERS,13(4). |
MLA | Salazar-Tortosa, D.,et al."Gas exchange at whole plant level shows that a less conservative water use is linked to a higher performance in three ecologically distinct pine species".ENVIRONMENTAL RESEARCH LETTERS 13.4(2018). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论